Attaching device for outlet boxes



Dec. 10, 1929. E. J. s. SWANSON ATTACHING DEVICE FOR OUTLET BOXES FiledMarch 28, 1927 IN V EN TOR.

By M? 7 M fi V w m fl B 7 M w 5 5 1 2 Z z a m ATTORNEYS.

Patented Dec. 10, 1929 UNITED STATES P TENT OFF/ICE ELMER J. s. swANsoN,or ERIE, PENNSYLVANIAQASSIGNQR TO ERIE M LLEA LE IRON COMPANY, or ERIE,PENNSYLVANIA, A CORPORATION, or PEN SYLVANIA ATTACHING DEVICE FOR OUTLETBOXES Application filed March 28, 1927. Serial No. 178,830.

Outlet boxes are provided with equipment which is directly attached tothe box. The

present invention is directed to the attaching devices by which this isaccomplished. Cerj tain kinds of such equipment extend into the box andwhere this is soit is necessary that the attaching device be so formedas to clear this equipment. The present invention is particularlydesigned to take care of this condition. Features and details of theinvention will appear from the specification and claims.

A preferred embodiment of the invention is illustrated in theaccompanying drawings as follows Fig. 1 shows a side elevation, partlybroken away to better show construction.

Fig. 2 is a plan view. i

Fig. 3 is a section on the line 33 in Fig. 2.

Fig. 1 is a plan view of one of the attach ing plates.

Fig. 5 is a sideelevation of the same.

Fig. 6 is a plan view of a companion attaching plate.

Fig.7 is a side elevation of the same.

1 marks an outlet box, and 2 conduits leading to the box, the conduitsleading into conduit openings 3 in the ordinary manner. The box has anopening 4: at one side which is surrounded by an annular securing flange5. The flange is provided with a radial slot 6 at one side. These partsare of ordinary construction.

Attaching plates 7 and 8 are attached to and extend under the flange 5/The plate 8 has extensions 9 and 10 which are adapted to extend underthe flange and are substantially in alinement with a U-bend formed withsides 11 and a bottom portion 12. An oft-set 13 is arranged midway inthe bottom portion and this is provided with an opening 1 1. The late isalso provided with a slot 15 which is in the bottom portion and thisslot is extended and a similar slot 16 provided in the extension 9.Screw-threaded openings 17 are arranged at the opposite end of thebottom por tion and also a screw-threaded opening 18 in the extension10. The companion plate 7 is provided with extensions 19 and 20 hav inguprights 21 and a bottom portion 22. The

plate is adapted to extend through the opening 14 so that the plates aretelescopically connected. The plate 7 has a slot 23 in the bottomportion and thisis continued and a similar slot124lis arranged in theextension 20. Screw1threads 25 are arranged in the bottom portionand atthe opposite end from the slot 23 and a screw thread 26 in the extension19. The screw threads with the parts assembled as shown in Fig. 3aredirectly under the slots and the sliding connection permits ottheseplates being movedjrelatively to each other. 1 Screws 2? are adapted to.extend through the equipment, or device which is to .beattached, thisbeing shown in dash lines. These screws areladaptedto extend through theslots and into the screwthreaded openings under the slots.

What I claimas newjis V 1. In an attaching device for outlet boxes, thecombination oi two telescopically connected plates, one end of eachplate being superimposed by the other and superimposing the other plateat the opposite end, each plate having its superimposing end slotted andthe end being superimposed provided with a screw-threaded opening, thescrewthreaded openings being below the slots, said plates having theircentral parts in the form of U-bends and the ends having the slots andscrew-threaded openings extending laterally from the U-bends.

2. In an attaching device for outlet boxes, the combination of twoplates, one plate passing through the other, and one end of each platebeing superimposed by the other and superimposing the other plate at theopposite end, each plate having its superimposing end Slotted and theend which is superimposed provided with a screw-threaded opening, thescrew-threaded openings being below the slots, said plates having theircentral parts in the-form of U-bends and the ends having the slots andscrew-threaded openings extending laterally from the U-bends.

3. In an attaching device for outlet boxes, the combination of twotelescopically connected plates, one end of each plate beingsuperimposed by the other and superimposing the other plate at theopposite end, each plate having its superimposing end slotted and theend being superimposed provided with a screw-threaded opening, thescrewthreaded openings being below the slots, said plates having theircentral parts in the form of-U-bends and the ends having the slots andscrew-threaded openings extending laterally from the U-bends, each platehaving a superimposing portion at the bottom of the U and a superimposedportion at the bottom of the U, the superimposing portions of the platesat the bottom of the U being provided with slots and the superimposedportions of the plates at the bottom of the U being provided with screwthreaded openings, the lastmentioned screw-threaded openings being belowthe slots in the plates at the bottom of the U.

4. The combination of an outlet box having an annular flange and anattaching device under the flange comprising two telescopicallyconnected plates, one end of each plate being superimposed by the otherand superimposing the other plate at the opposite end, each plate havingits superimposing end slotted and the end being superimposed providedwith a screw-threaded opening, the screwthreaded openings being belowthe slots, said plates having their central parts in the form of U-bendsand the ends having the slots and screw-threaded openings extendinglaterally from the U-bends.

In testimony whereof I have hereunto set my hand.

ELMER J. S. SWA'NSON.

